Noisy Air Con

I have a Focus 1.8 tdci on a 03 plate 100400 mls
On starting there is a very loud ratting that sounds like its coming from the air con pump I have changed the tenioner and pulley
Will a belt from a none air con fit? in order to eliminate the noise? its onl on starting

I have a Focus 1.8 tdci on a 03 plate 100400 mls On starting there is a very loud ratting that sounds like its coming from the air con pump I have changed the tenioner and pulley Will a belt from a none air con fit? in order to eliminate the noise? its onl on starting

if its rattling it will need a new pump the belt wont do anything to change that

you could do that yes or replace with a 2nd hand pump its easily changeable youreself then all you need is a regass if there are no metallic particles in the system a simple bypass of the pump will work but may make the car unusually steamy inside during colder months